https://gcc.gnu.org/g:1eb6c4f220c5b2cc2fb476ee9269aa4e5bd99a2d
commit 1eb6c4f220c5b2cc2fb476ee9269aa4e5bd99a2d Author: Alexey Merzlyakov <[email protected]> Date: Wed Jul 2 11:29:00 2025 -0600 [PATCH] [RISC-V] Fix shift type for RVV interleaved stepped patterns [PR120356] It corrects the shift type of interleaved stepped patterns for const vector expanding in LRA. The shift instruction was initially LSHIFTRT, and it seems still should be the same type for both LRA and other cases. PR target/120356 gcc/ChangeLog: * config/riscv/riscv-v.cc (expand_const_vector_interleaved_stepped_npatterns): Fix ASHIFT to LSHIFTRT insn. gcc/testsuite/ChangeLog: * gcc.target/riscv/rvv/autovec/pr120356.c: New test. (cherry picked from commit 9c1ed63e4c6b0f80dd47ce421dd7d80d52c38fd3) Diff: --- gcc/config/riscv/riscv-v.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc index 906b7322f72f..8b57c649e5e8 100644 --- a/gcc/config/riscv/riscv-v.cc +++ b/gcc/config/riscv/riscv-v.cc @@ -1598,7 +1598,7 @@ expand_const_vector_interleaved_stepped_npatterns (rtx target, rtx src, shifted_vid = gen_reg_rtx (mode); rtx shift = gen_int_mode (1, Xmode); rtx shift_ops[] = {shifted_vid, vid, shift}; - emit_vlmax_insn (code_for_pred_scalar (ASHIFT, mode), BINARY_OP, + emit_vlmax_insn (code_for_pred_scalar (LSHIFTRT, mode), BINARY_OP, shift_ops); } else
